package com.atguigu.gulimall.ware.config;

import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.annotation.EnableRabbit;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.amqp.support.converter.MessageConverter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

/**
 * @author: haitao
 * @email: haitaoss@aliyun.com
 * @date: 2020/7/21 16:25:37
 * @Description
 */
@Configuration
@EnableRabbit
public class MyRabbitConfig {
    /**
     * 使用json序列化机制，进行信息转换
     *
     * @return
     */
    @Bean
    public MessageConverter messageConverter() {
        return new Jackson2JsonMessageConverter();
    }

    /**
     * 只有连接上rabbit 才会创建我们的组件到rabbit中。
     * 我们可以使用消费者连接上去
     */
//    @RabbitListener(queues = {"stock.delay.queue"})
    public void handle(Message message) {

    }

    @Bean
    public Exchange stockEventExchange() {
        // String name, boolean durable, boolean autoDelete, Map<String, Object> arguments)
        return new TopicExchange("stock-event-exchange",
                true, false, null);
    }

    @Bean
    public Queue stockDelayQueue() {

        Map<String, Object> arguments = new HashMap<>();
        arguments.put("x-dead-letter-exchange", "stock-event-exchange");
        arguments.put("x-dead-letter-routing-key", "stock.release");
        arguments.put("x-message-ttl", 120000);
        // String name, boolean durable, boolean exclusive, boolean autoDelete, Map<String, Object> arguments
        return new Queue("stock.delay.queue", true, false, false, arguments);
    }

    @Bean
    public Queue stockReleaseStockQueue() {
        // String name, boolean durable, boolean exclusive, boolean autoDelete, Map<String, Object> arguments
        return new Queue("stock.release.stock.queue", true, false, false, null);
    }

    @Bean
    public Binding stockLockedBinding() {
        // String destination, DestinationType destinationType, String exchange, String routingKey,
        //			Map<String, Object> arguments
        return new Binding("stock.delay.queue",
                Binding.DestinationType.QUEUE,
                "stock-event-exchange",
                "stock.locked",
                null);
    }

    @Bean
    public Binding stockReleaseBinding() {
        // String destination, DestinationType destinationType, String exchange, String routingKey,
        //			Map<String, Object> arguments
        return new Binding("stock.release.stock.queue",
                Binding.DestinationType.QUEUE,
                "stock-event-exchange",
                "stock.release.#",
                null);
    }
}
